And harry semple



(No Model.)

. M. ALTMEYER.

NAIL ROLLING MACHINERY. I

v Patented Mar. 1, 1892. 44424 r T T T iii ml :1 W

NITED STATES PATENT QFFICE- MATTHEIV ALTMEYER, OF OAKLAND CALIFORNIA, ASSIGNOR OF THREE- FIFTHS TO J. F. HEIL, O. T. SOHREIBER, F. FREISMUTH, GEO. I-IEIR, K. J. HOGE, WV. J. WV. COIVDEN, \VM. F. STIFEL, A. REYMANN, PETER OASSELL, AND N. B. SCOTT, OF IVHEELING, \VEST VIRGINIA, AND HARRY SEMPLE, 7

OF STEUBENVILLE, OHIO.

NAIL-ROLLING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 470,150, dated March 1, 1892. Application filed April 18, 1891. Serial No. 389,468- (No model.)

T on whom it may concern.-

Be it known that I, MATTHEW ALTMEYER, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Nail-Rollin g Machinery; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

My invention has relation to certain new and useful improvements in nail-rolling machinery for attachment to nail machines, which consists in the arrangement of parts and details of construction, as will be hereinafter more fully set forth in the drawings, described, and pointed out in the specification.

My invention relates more particularly to certain mechanism for receiving and rolling nails as conveyed from the nail-machine, so as to form a screw-rolled nail, wherebya better and stronger nail may be. produced for the market, inasmuch as being rolled under heavy pressure the metal is more thoroughly compacted, and the nail thus materially strengthened.

In order to more thoroughly understand my invention, reference must be had to the accompanying drawings, forming a part of this specification, wherein similar letters of reference are used to denote corresponding parts throughout the entire specification.

Figure 1 is a top plan of the entire machine. Fig. 2 is aside view in elevation, showing feedchutes in section. Fig. 3 is an elevation of the innerface of the die end of the machine, looking in the direction of the arrow, Fig. 1, the stationary die and plate or arm B, wit-h the parts carried thereby, removed. Fig. at is a detail view of the rotary die; Fig. 5, a similar view of the stationary die; Fig. 6, a crosssectional view on line a: 00, Fig. 1; Fig. 7, a detail of the nail as received from the cuttingmachine, and Fig. 8 a similar View after being rolled.

-rives its power from any suitable machinery.

The letter A is used to indicate the feedpan which receives the cut nails or blanks from the cutting-machine (not shown) which fits into the slotted receiver A, so as to dis- 5o charge therein. Said receiver is provided with the longitudinal slot a, into which the ends of the blanks fall, leaving the same suspended by the head a.

The bed-plate of the machine is represented by the letter B, and said plate or arm has the nail-guideway 1) formed therein, which is intersected by the slots b b and has bolted or otherwise secured thereto the guide-plate 12 The plate or arm B projects forward from the machine frame or stand B and is provided with laterally-extending arms, between which the sprocket-wheels O O are secured on axles or shafts c 0, Figs. 1 and 3. Over said sprocket-wheels works the endless chain belt 0 which is provided with fingers or projections a which pass or extend through the slots 1) 17 so as to carry the nails, which fall from the receiver into the nail-guide 1) toward the rolling-dies stationed at the opposite end of the machine by the travel of the endless chain over the sprocket-wheels. Mounted upon the shaft D, working in suitable bearings formed in the frame, is the rotary corrugated die D and. larger worm-wheel D the latter of which derives motion, in order to operate the shaft D and die D, from worm E, located on shaft E. On the outer end of said shaft is located the drive-wheel E which de- (Not shown.) To the opposite end of the shaft E, I mount the worm F, which meshes with and operates the worm-wheel F, secured on shaft 0, in order to rotate sprocket-wheel 0, so as to impart motion to chain and sprocket-wheel O O. The worms E and F operate wheels D F in opposite directions, in order that rotary die and chain belt may travel in the same direction. The stationary die H is secured within clamp-bracket H, so as to lie immediately above the rotary die D. In order to allow for the formation of the nailpoint, I provide the gradual inclined peripheryf of the rotary die and correspondingly incline the lower edge of the stationary die II, as shown at f. Said die is cut away and curved, so as to conform to the periphery of the rotary die, and is provided wit-l1 slots h h, so as to allow the chain-belt fingers to pass therethrough while traveling with the belt.

By means of the screw-bolts z' z" I am enabled to readily adjust the stationary die so as to allow for varying sizes of nails to be rolled between the dies.

The operation of my machine is as follows: Asthe cut blank nails fall from the cutting-machine they drop into thefeed-pan, from whence they fall into receiver A, and by means of the slot to, into which the shank thereof fits, are conveyed to nail-guide 1), formed in the bed-plate B. The pins or fingers secured to the chain belt, projecting through slots Z) W, engage the blank nail,and as theyare carried forward by rotation of the chain belt force the same forward until they are deposited between the dies, whence the rotation of corrugated die causes the same to be rolled against the stationary die and screw-threads to be formed thereon. The nail-plates are subjected to the pressure of the dies until discharged from therebetween. As the nailblank enters between the dies, the gradual inclined beveled portion thereof causes the point to be pressed onto the nail, thus discharging the nail complete and ready for use. The mechanism is operated through the medium of the worms secured upon the driveshaft meshing with the hereinbefore described worm gears. As the inclined faces of the dies gradually increase, it is obvious that the point or taper given the nail is gradual and not sudden. By entirely or only partially corrugating the rotary die-face the rolled nail will be only partially or wholly screw-threaded. As the belt-chain rotates it is supported in the guide 71 I am aware that minor changes may be made in the arrangement of parts and details of construction herein shown and described without necessitating a departure from the nature and scope of my invention.

Having thus described myinvention, what I claim as new, and desire to secure protection in by Letters Patent of the United States, is

1. In a nail-rolling machine, the combination, with the forming-dies, of a drive wormwheel, a worm located on the drivingshaft meshing therewith, a nail-blank conveyer, a worm-wheel for operating said conveyer through the medium of the worm located on the drivingshaft meshing therewith, and mechanism for imparting motion to the drivin g-shaft, as and for the purpose set forth.

2. In a nail-rolling machine, the combination, with the rotating die, of the adjustable stationary die forming a pressing-bed, said die provided with slots through which the conveyer-fingers work, as and for the purpose set forth.

3. In a nail-rolling machine, the combination of a machine frame or stand having a shaft journaled therein, said shaft carrying a rotatable die, an angular bracket extending from the machine frame, a stationary die within the frame having its inner end hearing upon the rotatable die, set-screws passing through the angular bracket and engaging the stationary die, and means for conveying the nails between the opposing faces of the dies, substantially as set forth.

4:. In a nail-rolling machine, the coinbination of rolling-dies, a bed plate or arm provided with a longitudinal slot forming a nailguideway, said slot being intersected by vertical slots, an angular guide-plate secured to the bed-plate, and an endless traveling belt passing through the angular guide and provided with fingers projecting through the intersecting slots into the longitudinal slot of the bed-plate, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

MATTHEW AL'IMEYER.

Witnesses:

LEE D. CRAIG, THos. B. TAYLOR. 

